Studies of Drought Tolerance of Hard Red Winter Wheat (Triticum Aestivum L.) Cultivars in Nebraska PDF Download
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Author: Sumardi Bin Haji Abdul Hamid
Publisher:
ISBN:
Category : Winter wheat
Languages : en
Pages :
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Book Description
Author: Sumardi Bin Haji Abdul Hamid
Publisher:
ISBN:
Category : Winter wheat
Languages : en
Pages :
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Book Description
Author: Rudi Appels
Publisher: Sydney University Press
ISBN: 192089909X
Category : Science
Languages : en
Pages : 406
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Book Description
The papers herein are volume 2 of the proceedings of the 11th International Wheat Genetics Symposium, held in Brisbane, Australia, in 2008. The series presents the science of the genetic sciences applied to bread and durum wheats and other species.
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1086
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Book Description
Vols. for 1973- include the following subject areas: Biological sciences, Agriculture, Chemistry, Environmental sciences, Health sciences, Engineering, Mathematics and statistics, Earth sciences, Physics, Education, Psychology, Sociology, Anthropology, History, Law & political science, Business & economics, Geography & regional planning, Language & literature, Fine arts, Library & information science, Mass communications, Music, Philosophy and Religion.
Author: Robert Gaston
Publisher:
ISBN:
Category : Plants
Languages : en
Pages : 52
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Author:
Publisher:
ISBN:
Category : Plant breeding
Languages : en
Pages : 1648
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Author: David Emory Stooksbury
Publisher:
ISBN:
Category :
Languages : en
Pages : 120
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Author: R. H. Skinner
Publisher:
ISBN:
Category :
Languages : en
Pages : 51
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Five varieties and three breeding lines of winter wheat (Triticum aestivum L.) were compared for drought resistance at the seedling stage. Emergence under a greenhouse line-source sprinkler system was compared with germination in PEG 6000 and mannitol solutions as well as with seed weight and the ability to emerge from deep planting. No significant correlation existed between line-source emergence and germination in PGE or mannitol, emergence from deep planting or seed weight. Within varieties, light seeds (average 50 seed weight 1.313 g) germinated better under moisture stress than heavier ones (average 50 seed weight = 1.991 g) but there was no significant correlation between seed weight and germination among varieties. Seedling maturation rates were measured using the Haun index while total dry weight was used to indicate productivity. Shoot weight, root weight, root/shoot ratio, leaf water potencial and plant height were compared with productivity and maturation rate. None were found to be correlated with the index. Plant height, shoot weight and root weight were all significantly correlated with total dry weight. Plant height is suggested as a convenient, nondestructive indicator of total plant productivity. No correlation was found to exist between emergence under drought conditions and the ability of seedlings to grow under moisture stress. What little relationship existed between the two was generally negative, making incorporation of drought resistance at both stages into one variety difficult.
Author: Luis M. Viega
Publisher:
ISBN:
Category : Wheat
Languages : en
Pages : 110
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Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1390
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Author: Aldesuquy Heshmat
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659533358
Category : Science
Languages : en
Pages : 0
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Book Description
The present study was carried out in a greenhouse to evaluate the positive effect of foliar application of glycine betaine (10mM), grain presoaking in salicylic acid (0.05 M) and their interaction on drought tolerance of two wheat (Triticum aestivum L.) cultivars (sensitive, Sakha 94 and tolerant, Sakha 93). Exogenous application of glycine betaine (GB), salicylic acid (SA) or their interaction could counteract the adverse effects of drought by improvement of growth vigor of root and shoot, leaf area, retention of pigment content, increasing the concentration of organic solutes (soluble sugars and soluble nitrogen) as osmoprotectants, keeping out the polysaccharides concentration and/or stabilization of essential proteins in both wheat cultivars. Grain presoaking in SA or foliar application with GB alleviated the stress imposed by drought by keeping water within leaves and consequently recover the turgidity of stressed plants particularly the sensitive ones. Furthermore, the effect was more pronounced with GB+SA treatment. The applied chemicals appeared to alleviate the effect of water stress on wheat yield and the biochemical aspects of yielded grains.
